采用软模板法制备了系列多级孔铜硅复合氧化材料,分别考察了铜组分的引入方式和模板剂分子量对孔结构的影响.通过对所制备的复合材料进行SEM和N2吸附一脱附表征研究,结果表明:铜组分原位掺杂法较铜浸渍法负载所获得的CuSiO2复合材料比表面、孔容大;低分子量聚乙二醇模板剂更易获得大的比表面和孔容的CuSiO2复合材料.
To study the effects of the adding way of Cu and soft template on the porous structure for Cu-SiO2, the hierarchical porous Cu-SiO2 composite materials were prepared by soft template and charac- terized by SEM and N2 absorption-desorption. The results indicate that the relatively higher specific sur- face area and pore volume can be obtained in situ doping, with low molecularweight PEG, whereas the opposite results occurred in the impregnation method,with high molecularweight PEG.